<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
   <style>
       div{
           width: 300px;
           height: 300px;
       }
   </style>
    <script src="jquery-ui-color.js"></script>
    <script src="../Jquery%20test/jquery.js"></script>
    <script>
        $(function () {
          $("div").redBg()
        })
    </script>
</head>
<body>
<div>111111</div>
</body>
</html>